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authorIan Campbell <ian.campbell@citrix.com>2011-02-18 16:43:27 +0000
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-03-10 14:44:34 -0500
commitae1635b05fae30804061406010914d85d12431ac (patch)
treea662f1babafc3e2be0bff15e7732ebc1a8cf585f /drivers/xen
parent260a7d4cfd26d8bad8ac3a7fce11de47491d7e00 (diff)
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xen: events: do not leak IRQ from xen_allocate_pirq_msi when no pirq available.
Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: xen-devel@lists.xensource.com Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/events.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 89987a7..bce3035 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -676,8 +676,11 @@ void xen_allocate_pirq_msi(char *name, int *irq, int *pirq, int alloc)
if (alloc & XEN_ALLOC_PIRQ) {
*pirq = find_unbound_pirq(MAP_PIRQ_TYPE_MSI);
- if (*pirq == -1)
+ if (*pirq == -1) {
+ xen_free_irq(*irq);
+ *irq = -1;
goto out;
+ }
}
set_irq_chip_and_handler_name(*irq, &xen_pirq_chip,